man random (Jeux) - random
NAME
random - random lines from a file or random numbers
SYNOPSIS
[-er] [denominator]
DESCRIPTION
reads lines from the standard input and copies them to the standard output with a probability of 1/denominator. The default value for denominator is 2.
The options are as follows:
- -e
- If the -e option is specified, does not read or write anything, and simply exits with a random exit value of 0 to denominator Ns -1 , inclusive.
- -r
- The -r option guarantees that the output is unbuffered.
SEE ALSO
fortune()